Portland State University researchers simulated an earthquake on Friday, testing the effectiveness of a potentially revolutionary soil treatment. Researchers used a mobile field shaker called "T-Rex" ...

An earthquake typically sets off ruptures that ripple out from its underground origins. But on rare occasions, seismologists have observed quakes that reverse course, further shaking up areas that ...

The Hayward fault, part of the larger San Andreas fault system, runs 74 miles through the East Bay of the San Francisco Bay Area. The fault is overdue for an earthquake that could cause extensive ...

Last week, a plot of land in North Portland felt a shake, but not one caused by an earthquake, but instead by a machine known as T-Rex. Researchers with Portland State University were simulating a ...

Add Yahoo as a preferred source to see more of our stories on Google. California's Office of Emergency Services is shaking residents up. An earthquake simulator called the "Shake Trailer" is making a ...

This week’s magnitude 7.8 earthquake in the Philippines came with scenes familiar to New Zealanders: collapsed buildings, shattered facades and streets strewn with rubble. Earthquakes of such force ...

California's Office of Emergency Services is shaking residents up. An earthquake simulator called the "Shake Trailer" is making a tour of the state this week to help people prepare for earthquakes in ...